18 DEPARTMENT OF AGRICULTURE BULS. 926-950. 



Bulletin 



No. Page. 



Tractor, use in wheat production, requirements and cost 943 1 4V44 



Tractors:, ownership on corn-belt farms 931 32-34 



Transportation, apples from Pacific Northwest, methods 935 5-7 



Tricho gramma, mUnttitm. parasite of codling moth 932 83 



Trees, broadleaf, damping off. occurrence and causes 934 3-4 



Trucks, motor — 



advantages and disadvantages, reports of farmers !t:n S-10 



cost Of repairs, fuel, and tires 931 22-20.29 



experiments of 831 corn-belt farmers^ 931 1-34 



farm hauling, comparison with horses 931 14-16 



hauling on roads, comparison with horse wagons 931 10-13,16 



life and depreciation 931 21-22,29 



operating, costs summary 931 29-30 



repairs, costs 931 22-24 



1 "x it 110 heterdphyUa — 



stand in Tongass National Forest, quality and avail- 

 ability 950 8, 9, 10, 11 



Tule— 



description and food value for waterfowl 936 11-12 



occurrence in Utah marshes 936 11-12 



Tunnel evaporator — 



use and value in handling tomato seed for oil extraction 927 11-12 



See also Drier, tunnel. 

 Turkeys- 

 factor in spread of gapeworms, bulletin by B. H. Ransom 939 1-13 



gapeworm infection artificial, experiments 939 3-7 



market, examination of tracheas for gapeworms 939 1-2 



f 2 7 



susceptibility to gapeworms 939 < -in-i-i '19 



Tussock moth, effects of nicotine sulphate as ovicide aud 



larvicide 938 9, 14 



Twine, binder- 

 fiber production in the Philippine Islands, bulletin bv H. T. 



Edwards 930 1-19 



requirements of American farmers 930 2-3 



{12 13 

 14 '-?-_3S 



Utah- 

 Bear River marshes, wild ducks and duck foods, bulletin 



by Alexander Wetmore 930 1-20 



Salina experiment station, sneezeweed-feeding experi- 

 ments 947 6-17 



Utensils, milk, source of B. enteritidis sporoyenes 940 16,18 



Vegetation, Bear River marshes, Utah, value as duck food 936 10-14 



Virginia — ■ 



cotton seed, yields of oil and meal, by counties and 



months 948 { 2 °°~ 2 oqq 



walnut range and estimated stand 933 7,8,23 



Walnut- 

 black, growth and management, bulletin by F. S. Baker 933 1-43 



characteristics silvical. reproduction, diseases, and insects- 933 18-21 

 description, form, size, twigs, roots, bark, leaves, and 



nuts 933 15-18 



distribution, range, and associated species 9.".."> 2-6 



growing for nuts, yields, and care 933 37-40,42 



growth — 



and management, bulletin by F. S. Baker 933 1-43 



height, diameter, and volume 933 22-25 



Plantations — 



establishment and protection 933 40-43 



management, and production of lumber and nuts 933 31-40 



